• Wholesale FEP tubing

Wholesale FEP tubing

FEP tubing is a weldable, clear, and chemical-resistant tube that withstands up to 200°C. Size: 2mm ~ 30mm

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Quality Transparent FEP Tubing Manufacturer for your bulk orders

1.  Customers like BYD, Samsung, CATL, etc.

2.  Gas Chromatography to analyze chemical components of fep tubing,Check Video

3.  FDA 21 CFR 177.1550 FEP tubing, Check PDF File

4.  Online laser measurement ensures stability of fep tubing diameter.

5.  Real-time machine mornitoring black impurities during FEP tubing production

How do we strictly control the size of FEP tubing ?

Controlling the size of FEP tubing is vital due to strict size tolerances. At Dongguan Suniu Electronics Co.,Ltd, this is done using two main types of instruments: Pin Gauges and the Diameter Laser Measurement Machine. 

Pin Gauges are used to measure and inspect the inside diameter of the tubing. The pin gauge designed for the lower limit diameter should fit effortlessly through the tubing's ID, while the upper limit pin gauge should fit loosely.

The Diameter Laser Measurement Machine continuously measures and records the diameter and eccentricity of FEP plastic tubing. The device alarms if the size exceeds the default value. With these methods, Suniu Electronics ensures every piece of Teflon FEP tubing adheres to the specified measurements.

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Why do we control black impurities in fep tubing production ?

The black impurites in FEP tubing could be residual particles from the manufacturing process, contamination from handling,or indicators of chemical ractions that have turned the impurites black. It can spell significant consequences for product quality:

1. Physicial Properties Impact

The impurites could alter the tubing's physical properties such as tensile strength, flexibility, and transparency. The stability and robustness of the tubing may be compromised, potentially leading to product failure.

2. Potential for Chemical Reactions

Black impurites could potentially react with the substance passing through the tubing. These reactions might affect the chemical attributes of those substance, leading to unwanted changes.

How do use control black impurities in FEP tubing production ?

Our factory use Online Visual Inspection Systems to automatically find black impurities or defects in FEP tubing production. The system can identify black impurites as small as 0.1mm and inspect each inch of FEP tubing in real-time.

FEP Tubing specifications:

Imperial FEP tube sizes(Inner Dia.): 1/16" to 1" (Standard and customized size), wall thickness from 1/64" to 1/8"

Metrial FEP tube size: 2mm to 25mm (Standard and customized size), wall thickness from 0.4mm to 3mm

FEP Tubing tolerance: ±0.05 to ±0.2mm

Package: 50m to 500m/roll

Color: Transparent, red, orange, green, black, etc.

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FEP Lined Tubing 

FEP lined LDPE tubing

The tubing has a inner lining of FEP tubing, with a polyethylene(LDPE)/PVC/Nylon/PU jacket extruded over the outside of it

The FEP inside diameter(ID): 0.17" to 0.5" (4 to 12.5mm), LDPE outside diameter(OD): 0.25" to 0.625" (6mm to 15.875mm)

Part No.Inch SizeMetric SizeFEP linner thicknessAvailable Length / roll
FEPLDPE13/16"ID x 1/4" OD4.76mm ID x 6.35mm OD0.3mm ~ 0.5mm50" ~ 500"
FEPLDPE21/4" ID x 3/8" OD6.35mm ID x 9.52mm OD0.3mm ~ 0.5mm50" ~ 500"
FEPLDPE33/8" ID x 1/2"OD9.52mm ID x 12.7mm OD0.3mm ~ 0.5mm50" ~ 500"
FEPLDPE41/2" ID x 5/8" OD12.7mm ID x 15.88mm OD0.3mm ~ 0.5mm50" ~ 500"
4mm ID x 12.7mm OD0.5mm ~ 1mm50" ~ 500"

Customized size and length can be offered

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